| | 1 | /* |
| | 2 | * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * This file contains Original Code and/or Modifications of Original Code |
| | 7 | * as defined in and that are subject to the Apple Public Source License |
| | 8 | * Version 2.0 (the 'License'). You may not use this file except in |
| | 9 | * compliance with the License. Please obtain a copy of the License at |
| | 10 | * http://www.opensource.apple.com/apsl/ and read it before using this |
| | 11 | * file. |
| | 12 | * |
| | 13 | * The Original Code and all software distributed under the License are |
| | 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| | 18 | * Please see the License for the specific language governing rights and |
| | 19 | * limitations under the License. |
| | 20 | * |
| | 21 | * @APPLE_LICENSE_HEADER_END@ |
| | 22 | */ |
| | 23 | |
| | 24 | #ifndef _OBJC_ZONE_H_ |
| | 25 | #define _OBJC_ZONE_H_ |
| | 26 | |
| | 27 | #import <malloc/malloc.h> |
| | 28 | |
| | 29 | typedef malloc_zone_t NXZone; |
| | 30 | |
| | 31 | #define NX_NOZONE ((NXZone *)0) |
| | 32 | |
| | 33 | /********* Interface to zone based malloc ************/ |
| | 34 | |
| | 35 | #include <sys/cdefs.h> |
| | 36 | |
| | 37 | __BEGIN_DECLS |
| | 38 | extern NXZone *NXDefaultMallocZone(void); |
| | 39 | // Returns the default zone used by the malloc(3) calls |
| | 40 | |
| | 41 | extern NXZone *NXCreateZone(size_t startSize, size_t granularity, int canFree); |
| | 42 | // Create a new zone with its own memory pool. |
| | 43 | // canfree: if 0 the allocator will never free memory and mallocing will be fast |
| | 44 | |
| | 45 | extern void NXNameZone(NXZone *z, const char *name); |
| | 46 | // name a zone; The string will be copied |
| | 47 | |
| | 48 | extern void *NXZoneMalloc(malloc_zone_t *zone, size_t size); |
| | 49 | |
| | 50 | extern void *NXZoneRealloc(malloc_zone_t *zone, void *ptr, size_t size); |
| | 51 | |
| | 52 | extern void *NXZoneCalloc(NXZone *zonep, size_t numElems, size_t byteSize); |
| | 53 | // Allocates and then clears |
| | 54 | |
| | 55 | extern void NXZoneFree(malloc_zone_t *zone, void *ptr); |
| | 56 | |
| | 57 | extern void NXDestroyZone(malloc_zone_t *zone); |
| | 58 | |
| | 59 | extern NXZone *NXZoneFromPtr(void *ptr); |
| | 60 | // Returns the zone for a pointer, or NX_NOZONE if not in any zone. |
| | 61 | // The ptr must have been returned from a malloc or realloc call. |
| | 62 | __END_DECLS |
| | 63 | |
| | 64 | #endif /* _OBJC_ZONE_H_ */ |
projects / apple / libc.git / blame_incremental